Listmonk
FreeSelf-hosted newsletter and mailing list manager — open-source Mailchimp alternative
About Listmonk
Listmonk is a self-hosted newsletter and mailing list manager written in Go with PostgreSQL — it's the answer to Mailchimp's pricing for high-volume senders who are comfortable writing HTML templates rather than using a drag-and-drop builder. Single binary or Docker deployment, around 15,000 GitHub stars. The Go backend handles large subscriber lists efficiently — teams run it with millions of subscribers on modest hardware without performance issues. You bring your own SMTP relay (Amazon SES, Postmark, Mailgun, or any SMTP server), so sending costs are what you pay for infrastructure rather than per-email fees to Mailchimp. Bounce and unsubscribe handling is built in. The template system uses Go's html/template syntax — you write or paste HTML and use template variables for personalization. Segmentation via subscriber attributes is powerful but requires understanding the query syntax. Transactional email support was added in recent versions. What it doesn't have: automated drip sequences, landing page builders, A/B split testing, or conversion tracking. If you need those, ConvertKit or ActiveCampaign are still the answers. For high-volume bulk sends with full infrastructure control, it's excellent.
Key Features
Pricing Plans
Free (Self-hosted)
- Unlimited subscribers
- Unlimited campaigns
- Template editor
- Analytics
- API access
Pros
- Handles millions of subscribers
- High performance (written in Go)
- Beautiful, modern interface
- Completely free
Cons
- Self-hosted only — need your own SMTP
- No drag-and-drop email builder
- Fewer templates than Mailchimp
Best For
- High-volume email senders who've hit Mailchimp's pricing wall and want to bring their own SMTP relay
- Developers who want full control over email templates and sending infrastructure without drag-and-drop constraints
- Organizations handling sensitive subscriber data who need email infrastructure completely on-premises
Not Ideal For
- Marketing teams who need visual drag-and-drop email builders and automation workflow sequences
- Non-technical users — HTML templates and Go template syntax aren't beginner-friendly
Potential Deal Breakers
- No drag-and-drop email builder — all templates are HTML, requiring technical skill to maintain
- No automation sequences or drip campaigns — bulk sends only, no behavioral triggers
- No A/B split testing on subject lines or content
Data & Privacy
Open-source newsletter manager. Self-hosted keeps all subscriber data and email content on your server. No telemetry. No cloud dependency. Complete data sovereignty.
Who Is This For?
Hands-on tested 2026-05
Signup Experience
Self-hosted via Docker — no external account needed. Requires own SMTP configuration before sending. Admin UI is clean and setup is well-documented for technical users.
For Home Users
Overkill for personal newsletters but free and powerful for technically capable individuals running a small list. Requires server setup and SMTP which is a real barrier for non-technical users.
For Business Users
Best self-hosted newsletter platform for technical teams. Handles millions of subscribers with minimal resource usage. SMTP flexibility and full data ownership make it ideal for privacy-conscious organizations.
Our Verdict
Listmonk is Mailchimp for developers: fast, cheap to run, and powerful if you're comfortable with HTML templates. Bring your own SES and the cost of sending a million emails drops to a few dollars. It's not trying to be ConvertKit — there's no automation, no visual builder, no landing pages. Know what you're getting before you commit.